1/* ioapi.h -- IO base function header for compress/uncompress .zip
2 part of the MiniZip project - ( http://www.winimage.com/zLibDll/minizip.html )
3
4 Copyright (C) 1998-2010 Gilles Vollant (minizip) ( http://www.winimage.com/zLibDll/minizip.html )
5
6 Modifications for Zip64 support
7 Copyright (C) 2009-2010 Mathias Svensson ( http://result42.com )
8
9 For more info read MiniZip_info.txt
10
11*/
12
13#if defined(_WIN32) && (!(defined(_CRT_SECURE_NO_WARNINGS)))
14 #define _CRT_SECURE_NO_WARNINGS
15#endif
16
17#if defined(__APPLE__) || defined(IOAPI_NO_64) || defined(__HAIKU__) || defined(MINIZIP_FOPEN_NO_64)
18// In darwin and perhaps other BSD variants off_t is a 64 bit value, hence no need for specific 64 bit functions
19#define FOPEN_FUNC(filename, mode) fopen(filename, mode)
20#define FTELLO_FUNC(stream) ftello(stream)
21#define FSEEKO_FUNC(stream, offset, origin) fseeko(stream, offset, origin)
22#else
23#define FOPEN_FUNC(filename, mode) fopen64(filename, mode)
24#define FTELLO_FUNC(stream) ftello64(stream)
25#define FSEEKO_FUNC(stream, offset, origin) fseeko64(stream, offset, origin)
26#endif
27
28
29#include "ioapi.h"
30
31voidpf call_zopen64 (const zlib_filefunc64_32_def* pfilefunc, const void*filename, int mode) {
32 if (pfilefunc->zfile_func64.zopen64_file != NULL)
33 return (*(pfilefunc->zfile_func64.zopen64_file)) (pfilefunc->zfile_func64.opaque,filename,mode);
34 else
35 {
36 return (*(pfilefunc->zopen32_file))(pfilefunc->zfile_func64.opaque,(const char*)filename,mode);
37 }
38}
39
40long call_zseek64 (const zlib_filefunc64_32_def* pfilefunc,voidpf filestream, ZPOS64_T offset, int origin) {
41 if (pfilefunc->zfile_func64.zseek64_file != NULL)
42 return (*(pfilefunc->zfile_func64.zseek64_file)) (pfilefunc->zfile_func64.opaque,filestream,offset,origin);
43 else
44 {
45 uLong offsetTruncated = (uLong)offset;
46 if (offsetTruncated != offset)
47 return -1;
48 else
49 return (*(pfilefunc->zseek32_file))(pfilefunc->zfile_func64.opaque,filestream,offsetTruncated,origin);
50 }
51}
52
53ZPOS64_T call_ztell64 (const zlib_filefunc64_32_def* pfilefunc, voidpf filestream) {
54 if (pfilefunc->zfile_func64.zseek64_file != NULL)
55 return (*(pfilefunc->zfile_func64.ztell64_file)) (pfilefunc->zfile_func64.opaque,filestream);
56 else
57 {
58 uLong tell_uLong = (uLong)(*(pfilefunc->ztell32_file))(pfilefunc->zfile_func64.opaque,filestream);
59 if ((tell_uLong) == MAXU32)
60 return (ZPOS64_T)-1;
61 else
62 return tell_uLong;
63 }
64}
65
66void fill_zlib_filefunc64_32_def_from_filefunc32(zlib_filefunc64_32_def* p_filefunc64_32, const zlib_filefunc_def* p_filefunc32) {
67 p_filefunc64_32->zfile_func64.zopen64_file = NULL;
68 p_filefunc64_32->zopen32_file = p_filefunc32->zopen_file;
69 p_filefunc64_32->zfile_func64.zread_file = p_filefunc32->zread_file;
70 p_filefunc64_32->zfile_func64.zwrite_file = p_filefunc32->zwrite_file;
71 p_filefunc64_32->zfile_func64.ztell64_file = NULL;
72 p_filefunc64_32->zfile_func64.zseek64_file = NULL;
73 p_filefunc64_32->zfile_func64.zclose_file = p_filefunc32->zclose_file;
74 p_filefunc64_32->zfile_func64.zerror_file = p_filefunc32->zerror_file;
75 p_filefunc64_32->zfile_func64.opaque = p_filefunc32->opaque;
76 p_filefunc64_32->zseek32_file = p_filefunc32->zseek_file;
77 p_filefunc64_32->ztell32_file = p_filefunc32->ztell_file;
78 /* GODOT start */
79 p_filefunc64_32->zfile_func64.alloc_mem = p_filefunc32->alloc_mem;
80 p_filefunc64_32->zfile_func64.free_mem = p_filefunc32->free_mem;
81 /* GODOT end */
82}
83
84/* GODOT start */
85/*
86// GODOT end
87
88
89static voidpf ZCALLBACK fopen_file_func(voidpf opaque, const char* filename, int mode) {
90 FILE* file = NULL;
91 const char* mode_fopen = NULL;
92 (void)opaque;
93 if ((mode & ZLIB_FILEFUNC_MODE_READWRITEFILTER)==ZLIB_FILEFUNC_MODE_READ)
94 mode_fopen = "rb";
95 else
96 if (mode & ZLIB_FILEFUNC_MODE_EXISTING)
97 mode_fopen = "r+b";
98 else
99 if (mode & ZLIB_FILEFUNC_MODE_CREATE)
100 mode_fopen = "wb";
101
102 if ((filename!=NULL) && (mode_fopen != NULL))
103 file = fopen(filename, mode_fopen);
104 return file;
105}
106
107static voidpf ZCALLBACK fopen64_file_func(voidpf opaque, const void* filename, int mode) {
108 FILE* file = NULL;
109 const char* mode_fopen = NULL;
110 (void)opaque;
111 if ((mode & ZLIB_FILEFUNC_MODE_READWRITEFILTER)==ZLIB_FILEFUNC_MODE_READ)
112 mode_fopen = "rb";
113 else
114 if (mode & ZLIB_FILEFUNC_MODE_EXISTING)
115 mode_fopen = "r+b";
116 else
117 if (mode & ZLIB_FILEFUNC_MODE_CREATE)
118 mode_fopen = "wb";
119
120 if ((filename!=NULL) && (mode_fopen != NULL))
121 file = FOPEN_FUNC((const char*)filename, mode_fopen);
122 return file;
123}
124
125
126static uLong ZCALLBACK fread_file_func(voidpf opaque, voidpf stream, void* buf, uLong size) {
127 uLong ret;
128 (void)opaque;
129 ret = (uLong)fread(buf, 1, (size_t)size, (FILE *)stream);
130 return ret;
131}
132
133static uLong ZCALLBACK fwrite_file_func(voidpf opaque, voidpf stream, const void* buf, uLong size) {
134 uLong ret;
135 (void)opaque;
136 ret = (uLong)fwrite(buf, 1, (size_t)size, (FILE *)stream);
137 return ret;
138}
139
140static long ZCALLBACK ftell_file_func(voidpf opaque, voidpf stream) {
141 long ret;
142 (void)opaque;
143 ret = ftell((FILE *)stream);
144 return ret;
145}
146
147
148static ZPOS64_T ZCALLBACK ftell64_file_func(voidpf opaque, voidpf stream) {
149 ZPOS64_T ret;
150 (void)opaque;
151 ret = (ZPOS64_T)FTELLO_FUNC((FILE *)stream);
152 return ret;
153}
154
155static long ZCALLBACK fseek_file_func(voidpf opaque, voidpf stream, uLong offset, int origin) {
156 int fseek_origin=0;
157 long ret;
158 (void)opaque;
159 switch (origin)
160 {
161 case ZLIB_FILEFUNC_SEEK_CUR :
162 fseek_origin = SEEK_CUR;
163 break;
164 case ZLIB_FILEFUNC_SEEK_END :
165 fseek_origin = SEEK_END;
166 break;
167 case ZLIB_FILEFUNC_SEEK_SET :
168 fseek_origin = SEEK_SET;
169 break;
170 default: return -1;
171 }
172 ret = 0;
173 if (fseek((FILE *)stream, (long)offset, fseek_origin) != 0)
174 ret = -1;
175 return ret;
176}
177
178static long ZCALLBACK fseek64_file_func(voidpf opaque, voidpf stream, ZPOS64_T offset, int origin) {
179 int fseek_origin=0;
180 long ret;
181 (void)opaque;
182 switch (origin)
183 {
184 case ZLIB_FILEFUNC_SEEK_CUR :
185 fseek_origin = SEEK_CUR;
186 break;
187 case ZLIB_FILEFUNC_SEEK_END :
188 fseek_origin = SEEK_END;
189 break;
190 case ZLIB_FILEFUNC_SEEK_SET :
191 fseek_origin = SEEK_SET;
192 break;
193 default: return -1;
194 }
195 ret = 0;
196
197 if(FSEEKO_FUNC((FILE *)stream, (z_off64_t)offset, fseek_origin) != 0)
198 ret = -1;
199
200 return ret;
201}
202
203
204static int ZCALLBACK fclose_file_func(voidpf opaque, voidpf stream) {
205 int ret;
206 (void)opaque;
207 ret = fclose((FILE *)stream);
208 return ret;
209}
210
211static int ZCALLBACK ferror_file_func(voidpf opaque, voidpf stream) {
212 int ret;
213 (void)opaque;
214 ret = ferror((FILE *)stream);
215 return ret;
216}
217
218void fill_fopen_filefunc(zlib_filefunc_def* pzlib_filefunc_def) {
219 pzlib_filefunc_def->zopen_file = fopen_file_func;
220 pzlib_filefunc_def->zread_file = fread_file_func;
221 pzlib_filefunc_def->zwrite_file = fwrite_file_func;
222 pzlib_filefunc_def->ztell_file = ftell_file_func;
223 pzlib_filefunc_def->zseek_file = fseek_file_func;
224 pzlib_filefunc_def->zclose_file = fclose_file_func;
225 pzlib_filefunc_def->zerror_file = ferror_file_func;
226 pzlib_filefunc_def->opaque = NULL;
227}
228
229void fill_fopen64_filefunc(zlib_filefunc64_def* pzlib_filefunc_def) {
230 pzlib_filefunc_def->zopen64_file = fopen64_file_func;
231 pzlib_filefunc_def->zread_file = fread_file_func;
232 pzlib_filefunc_def->zwrite_file = fwrite_file_func;
233 pzlib_filefunc_def->ztell64_file = ftell64_file_func;
234 pzlib_filefunc_def->zseek64_file = fseek64_file_func;
235 pzlib_filefunc_def->zclose_file = fclose_file_func;
236 pzlib_filefunc_def->zerror_file = ferror_file_func;
237 pzlib_filefunc_def->opaque = NULL;
238}
239// GODOT start
240*/
241/* GODOT end */
242